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Product Description It is the office armchair inspired by an innovative philosophy of the concept of comfort, able to express the most advanced integration between the chair itself and its movements. Its revolutionary dynamic concept is based on the peculiarity of the backrest, composed by two different sections that move independently one from the other. In this way the person using the chair is adequately supported while moving in any desired position, adding also a sensible release on the spinal cord. It is in this way that Xenium Duo-Back prevents damages to the back and offers an important relief to the people using the chair for many hours during the day, day after day.

Base materials and finishings Five star base. Diameter and dimensions in accordance to UNI, DIN and BIFMA norms. 0905P: Main structure anti-scratch recyclable techno-polymer and fibreglass, 700 mm diameter. 0905C: Polished aluminium base, 700 mm diameter .

Stuffing material Seat and backrest in expanded polyurethane. Seat of 40 mm thickness and 45  gr/lt density. Back-rest of 40 mm thickness and 45 gr/lt density. Headrest of 20 mm thickness and 45 gr/lt density. Foams according to C.S.E.R.F. 4/83 standards. Material is recyclable and without CFC.

Cladding types Available in Trevira fabric, Mirage, Rennatech, Pegaso, Polyurethane, Vega and leather, from Throna colour chart.

Wheel types and characteristics Diameter 65 mm., self-braking with rubber ring.

Regulating systems X-DUO BACK is offered with Dynamic mechanism. Synchronised adjustment of seat and backrest with maximum backrest inclination up to 26° and seat inclination on 12°, lockable in 11 different positions, with anti-shock device. Side tension control. Dynamic has an integrated sliding seat mechanism. Dynamic has an integrated negative (from 0° to 5°) seat adjustment mechanism. Test according to DIN 4550/4551, central piston diameter 28 mm, protected by black steel tube diameter 50 mm. External cover by a telescopic (three layer) ABS tube. Class 4.

Back rest dimension Two layers of multi-layered beech wood, internal part 8 mm thickness and external part 5 mm thickness Class E1 glue. Double backrest system DUO-BACK? with patented elastic connection system in soft rubber compound. The system allow for an indipendemnt flexibility of the two backrest parts allowing for the human back to be always supported by the backrest. The two backrest are fixed to the supporting structure with two metal rods. Backresta are connected to the main backrest frame (height adjustable in 7 positions) with an elliptical polished aluminium frame on the bottom and in techno-polymer and fibreglass on top.

Armrests Height adjustable in 8 different positions and 15°m side adjustable. Supporting structure in recyclable techno-polymer and fibreglass. Armpads in grey soft moulded rubber with possibility of upholstery.

Accessories Headrest (optional) Removable. Flexible, in anti-scratch recyclable techno-polymer and fibreglass. Headrest is 6 cm height adjustable.

Certificates EN 1335 –1/2/3 ANSI/BIFMA X5.1-2002